| Title | Preliminary processed SADCP data from the Gough Island Relief cruise on the SA Agulhas II Voyage 021, September 2016 |
|---|---|
| Project | Gough Island Relief |
| Authors |
Azwianewi Makhado |
| Publisher | Department of Forestry, Fisheries and the Environment (2017) |
| Contributors |
Contact Person: Marcel van den Berg |
| Abstract | This is processed Shipboard Acoustic Doppler Current Profiler (SADCP) data from the Gough Island Relief cruise on the SA Agulhas II Voyage 021, between 01 September 2016 and 06 October 2016. The Gough Island Relief Voyage is an annual cruise undertaken by the Department of Environmental Affairs (DEA) to change the overwintering team in Gough Island and to replenish the supplies at the British’s leased Gough Island Research base. The cruise also serves as a means to transport the residents and/or visitors to Tristan da Cunha using a signed agreement between South Africa and United Kingdom (UK). This voyage was to deliver the Gough 62 team to the island and return with the Gough 61 team. There was no scientific team onboard this voyage, however the Chief Navigations officer activated the ship mounted ADCP along the journey. This dataset was processed using older standards which may not align with international best practices and the standards currently adhered to by the Department of Forestry, Fisheries and the Environment (DFFE). The Department is re-processing and replacing data to ensure everything has the same format and is of the same quality and datasets will be marked as obsoleted once that is done. As such the user assumes the entire risk related to the use of these data in its current state and format. DFFE disclaims all warranties of the data whether expressed or implied, including without limitation, any warranties of merchantability or fitness for a particular purpose. For any concerns regarding the data, the user may decide to liaise with the listed PIs who will share their insight on the data quality, where possible. It is also strongly recommended that the user liaises with the listed PIs regarding their proposed projects to mitigate against duplication of research efforts. |
| Methods | The vessel mounted 75kHz Teledyne RD Instruments ADCP , mounted in the vessel's scientific blister at a depth of 4m, was set to collect data for the duration of the voyage. Data was recorded using the Teledyne RDI VMDAS (version1.46) software. A blanking distance of 8m was used, with the bin size of 8m. The Short Term Averaged (STA) data, set to a 3 minute average, was processed and edited using the AquaVision ViSea DAS and ViSea DPS software. Data was then exported to text files. All velocity data is in m/s. |
| Data | |
| Temporal extent | 01 Sep 2016 – 06 Oct 2016 |
| Geographic extent |
South Atlantic Ocean, Cape Town, Tristan da Cunha, Gough Island
North: -33.88333 |
| Keywords | GOUGH ISLAND, SA Agulhas II, SA Agulhas II 021, SADCP, Shipboard Acoustic Doppler Current Profilers |
| Related resources |
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